300W Mono Power Amplifier Board 1943+5200 Hifi High-Power Audio Amplifier Board With Speaker Protection
SPECIFICATIONS
Application: HiFi Audio System, Professional PA System, 15-inch Speaker Driver, Subwoofer Power Amplifier, DIY Power Amp, Home Theater, Studio Monitoring, Live Sound
Board Type: Pure Power Amplifier (No Preamplifier)
Brand Name: occkic
Certification: NONE
Channels: 1
Circuit Architecture: Dual Differential Input (A970/C2240) + Voltage Amplification (A1145/C2705) + Driver (A1837/C4793) + Output (A1943/C5200)
Control Method: Others
Feature: Upgraded Mono Power Amplifier Board, Output Transistors: A1943 + C5200 High-Power Pair (Matched), Voltage Amplification: A1145/C2705, Driver Stage: A1837/C4793, Input Differential: A970/C2240 (Dual Differential Circuit Design), Output Power: 300W @ 8Ω, Wide Power Supply Range: DC ±20V to ±90V (±20V-75V Recommended -- Do NOT Exceed 90V), Pure Power Amplifier (No Preamplifier -- Requires External Preamp/Volume Control), Drives 15-inch Speakers with Ease, Class AB Amplifier Design, 150x75mm PCB, Suitable for Professional Audio, DIY HiFi, PA Systems, and 2-Way Stereo Systems (Requires 2 Boards for Stereo), Note: Linear Power Supply Recommended (Do NOT Use Switching Power Supply)
High-concerned chemical: none
Label: Mono Power Amplifier Board,300W Amplifier Board,1943 5200 Amplifier,±20-90V Amplifier,15-inch Speaker Amplifier,A1943 C5200 Board,Power Amp Module,A1943 C5200 Mono 300W Amp,±20V-90V Wide Voltage Amp,High Power 15-inch Speaker Amp,Dual Differential Amplifier Circuit,A970 C2240 Audio Transistor,Class AB Power Amplifier,DIY Stereo Power Amp,PA Amplifier Module
Material: others
Maximum Power Per Channel: Above 200W
Model Number: .
Origin: Mainland China
Output Power: 300W,300W @ 8Ω
Output Transistors: A1943 + C5200 (Matched Pair)
PCB Size: 150 X 75 mm
Package: Yes
Parts: Amplifier board
Power Supply: DC ±20V to ±90V (Recommended ±20-75V)
Power Supply Type: Linear Power Supply ONLY (NOT for Switching Power Supply)
Speaker Load: 8Ω (Recommended)
Surround sound channel configuration: Others
Type: Mono Power Amplifier Board / Class AB Module

Features:
1. High power output, up to 300W, easy to drive large speakers.
2. Adopting high pressure audio tube, the sound quality is clear and stable.
3. Wide power supply range, supporting ± 20V-90V, suitable for various power environments.
4. Strong driving force, easy to drive 15 inch speakers, excellent performance.
5. Compact size, easy to install, suitable for various audio systems.
Product Introduction:
This is an upgraded version of the single channel amplifier board 1943+5200 high-power tube amplifier board. The board is a single channel amplifier board, and for those who need dual channels, two amplifier boards are required. The circuit design uses A970/C2240 high-voltage audio tube dual differential circuit and A1145/C2705 for voltage amplification, promoting the use of medium power tube A1837/C4793, and the output stage uses A1943/C5200 high-power tube; The power supply range is wide, with a DC of ± 20V-90V. As long as sufficient power is supplied, it can easily achieve an output power of 300W. The driving force is extremely strong, and there is no pressure to drive a 15 inch horn.
Parameter:
Power supply voltage: DC ± 20-90V (recommended use: ± 20V-75V) Do not challenge the voltage limit, and switch mode power supply cannot be used for power supply. )
Output power: 300W (8 Ω box)
PCB board size: 150MM * 75MM
Package Include:
1X power amplifier board


















- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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